package com.cz.register;

public class test12 {
    public static void main(String[] args) {
        int[] arr = new int[3];

        System.out.println(arr);
        System.out.println(arr[0]);
        System.out.println(arr[1]);
        System.out.println(arr[2]);

        arr[0] = 10;
        arr[1] = 20;
        arr[2] = 30;
        System.out.println(arr[0]);
        System.out.println(arr[1]);
        System.out.println(arr[2]);
    }
}
